Cosmetical preparation



Patented Mar. 26, 1935 I t v UNITED. STATES PATENT OFFICE Martin Bollmann, Dessau in Anhalt, Germany, assignor to Winthrop Chemical Company, Inc.-, New York, N. Y., a corporation of New York No Drawing. Application August 14, 1934, Serial No. 739,840. In Germany December 29, 1932 16 Claims. (01. 167-91) For making powders and other cosmetic prep- Example 2.Talc powder arations the magnesium and zinc salts of stearic Grams acid are generally used together with, for in- Talc 800 stance, talcum, rice, starch, magnesium carbonate Kaolin 700 and so on. Zinc or magnesium undecylate 100 5 This invention consists in making cosmetic Magnesium carbonate"; 100 preparations with the aid of salts insoluble in Titanium white 100 water, particularly magnesium salts and zinc salts, of such aliphatic acids as contain an odd Example gr-Fluid Powder number of carbon atoms.. Grams 10 A further object of the invention are the new i 9 magrtesmm undecylate 40 insoluble non-poisonous salts of the said acids. Tltamum wmte 80 The said salts, when compared with the stear- 105 ates hitherto used, are distinguished by their Glycerm pure color and especially by the softness and Water 15 fineness of the products made with them. On the skin they behave similarly to fats and can be Ewample Face cream remarkably well rubbed in, being then very firm- 13 grams of stearin are saponified in ly retained. They spread and coat more freely. 160 grams of water by means of and uniformly than the products made with the 10 grams of borax, 20

aid of the corresponding stearates. 30 grams of glycerin and There come into question for the invention the 1.8 grams of calcium carbonate, and into the salts of saturated fatty acids having an odd nummass are stirred Y ber of carbon atoms ranging from 7-l7. Such 10 grams of zinc undecylate or magnesium acids are heptylic acid, nonylic acid, tridecylic undecylate. 25

acid, pentadecylic acid and heptadecylic acid. Of this series, the salts of heptylic, nonylic undecylic and tridecylic acid have particularly favorable In the foregoing examples there may be used instead of zinc or magnesium undecylate a corresponding salt of another saturated fatty acid fifififiids tiiili iif fitii fiaififi having anunevennumberofwbmmtures of the salts in question may also be used.

atoms have remarkably better properties for the other nompoisonous salts of the Said acids as purpose forth than the salts of aclds 71th an for instance, the titanium salts, likewise are suiteven number of carbon atoms. This holds true able. v n wh n mp in f r n n zin r ma The present application is a continuation-innesium undecylate with the corresponding salts part of my copending applicatign serial 94 of capric acid or lauric acid, that means, with its 692, filed October 21, 1933. nearest homologous compounds. In the case of What I claim is:- salts of heptylic ornonylic acid, preferably a Cosmetic pl containing an l 40 small amount of a perfume is added to the 005- ble, non-poisonous metal salt of an aliphatic acid 40 metic preparations made with these products, in as contains an Odd number of carbon atoms of order to mask the odor owing to these salts. 7 to 17 The salts in question can be made easily, for F 9 F cqntammg 2mg salt example by mixing an alcoholic Solution or aque of an aliphatic acid as contains an odd number of carbon atoms of 7 C. to 17 C. ous alcoholic solution of an alkali salt of the 3 Cosmetic preparations containing aninsolw fatty acid with an aqueous solution of any ble non-poisonous metal salt of an aliphatic acid nesium a Zinc saltwhen mixed with of the group consisting of nonylic acid, undecylic comparatively large proportions of other mateacid and tridecylic acid rials the salts in question exhibit their valuable 4, c tic preparations containing a zinc salt 50 properties. of an aliphatic acid of the group consisting of The following examples of cosmetics illustrate nonylic acid, undecylic acid and tridecylic acid. the inv ti n; 5. Cosmetic preparations containing an insoluble non-poisonous metal salt of undecylic acid. Example 1.Rice powder 6. Cosmetic preparations containing zinc un- 55 Grams decylate. Finest rice flour 7. Cosmetic preparations containing magnesi- Titanium white 20 um undecylate. Zine or magnesium undecylate 40 8. A face powder containing rice flour and an Magnesium carbonate 5 insoluble non-poisonous metal salt of an aliphatic 60 atoms powders easily distributable on the human skin and fastly adhering to the latter.

13. A cold cream containing glycerin and zinc undecylate.

14. As a new product the insoluble salts of undecylic acid'with a metal of the group consisting of magnesium and zinc, said salts forming pure white powders easily distributable on the human skin and fastly adhering to the latter.

15. As a new product magnesium undecylate.

16. As a new product zinc undecylate.

' MARTIN BOLLMANN. 

